Lock



FIG. 1 is a perspective view of a lock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a top plan view thereof.

FIG. 7 is a perspective view of a second embodiment of a lock showing my new design;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a right side elevational view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a left side elevational view thereof; and,

FIG. 12 is a top plan view thereof.

The features shown in broken lines illustrate background of the invention and do not form a part of the present invention. 

The ornamental design for a lock, as shown and described. 